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Finding the Fourth Proportional to 173,801.20, 260,701.80 and 85,227.70

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Solution

The fourth proportional to 173,801.20, 260,701.80 and 85,227.70 is: 127,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,801.20 : 260,701.80 = 85,227.70 : x
  2. Step 2: Convert to fraction form
    173,801.20/260,701.80 = 85,227.70/x
  3. Step 3: Cross multiply
    173,801.20x = 260,701.80 × 85,227.70
  4. Step 4: Simplify right side
    173,801.20x = 22,219,014,799.86
  5. Step 5: Solve for x
    x = 22,219,014,799.86/173,801.20
  6. Step 6: Final answer
    x = 127,841.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.